# -*- coding: utf-8 -*-

import hashlib


def get_md5(url):
    if isinstance(url, str):
        url = url.encode('utf-8')
    m = hashlib.md5()
    m.update(url)
    return m.hexdigest()

if __name__ == "__main__":
    print (get_md5("http://www.yiibai.com/mongodb/mongodb_create_collection.html".encode("utf-8")))